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Safe design for diesel oxidation desulfurization

2017-07-19View Original

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Recently, I came across some new diesel oxidation desulfurization technologies in forums, such as UniPure’s ASR-2 technology from Texaco, PetroStar’s CED technology, and Japan’s PEC technology. However, I personally believe that the reactor poses certain safety risks: 1. Hydrogen peroxide is present in the reaction system, and it can easily decompose to produce oxygen (a combustion accelerator), and even stabilizers cannot prevent this from happening. 2. Diesel oxidation desulfurization: the system contains a combustible substance – diesel, with a flash point of 45°C. 3. The temperature of oxidation reactions is usually above 60°C, which exceeds the flash point of diesel. So in the case of 1+2+3, an explosive mixture is formed within the system, which poses a risk of fire and explosion. How can the risks associated with explosions be avoided in process design? According to literature and reports, these companies have reached pilot-scale production, and they should have reasonable safety design schemes. Those who are interested are welcome to discuss this; expert guidance is also appreciated~~~

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